Combined churn and butter-worker.



No'. 861,561. I EPATENTED JULY 30, 1907. D. E. VIRTUE.

COMBINED GHURN AND BUTTER WORKER.

APPLICATION FILED MAY 27.1907.

3 SHEETS-SHEET 1.

PATENTED JULY 30, 1907. I

. 1). E. VIRTUB.

COMBINED GHURN AND BUTTER WORKER.

APPLICATION FILED MAY 27,1907.

3 SHEETS-SHEET 2.

No. 861,561. PATENTED JULYBO, 1907.

- D. E. VIRTUB.

COMBINED GHURN AND BUTTER WORKER.

APPLIOATION FILED MAY 27, 1907.

3 SHEETS-SHEET 3.

M ll/III:

YVzFzzwaw. 3 172776771 07. 4 M flZi I/E 'riz'm,

UNITED STATES PATENT oFFroE.

DENNIS E. VII tlUE, O F OWATONNA, MINNESOTA.

COMBINED enema AND BUTTER-WORKER.

Patented July 33( 1907.

Application meat 27,1907. s rial N 375,894.

terworkers, and has for its object to provide an efficient machine of this class.

To this end, it consists of the novel devices and combinations of devices hereinafter described. and pointed out in the claims.

In somefof its general features, my-machine ,herein disclosed is similar to the machine disclosed and claimed in the prior U. S. patent issued to myself and M. Deeg, of date October 3rd, 1899, No. 634,074, but my present machine differs from said prior machine in respect to many important and claimed.

My improved machine is illustrated in'the accompanying drawings, wherein like notations indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a vertical cross section through the entire machine, with some parts removed. Figs. 2 and 3 are details in section on the line x x of Fig. 7, illustrati'ng parts of the friction clutches used as elements in the roller drive. Fig. 4 is a view chiefly in elevation, but with some parts in section, others broken away, and some parts removed,

.showing the geared or front end of the machine. Fig.

5 is a view chiefly in side'elevation, with somepans broken away and others removed, showing the-same or geared end of the machine. Fig. 6 is a detail, in vertical section, on the line a x of Fig. 5. Fig. 7 is a view in section, in a plane through the; axis of the drum and axes of .the two rollers, with some-parts broken away, with the roller shafts standing in avertical line; Fig. 8 is a view in section on the line as? x of Fig. 7; and Fig. 9 is a detail, partly in section and partly in elevation, on the line xi w of Fig. 7, with some parts broken away and others removed.

In a suitable supporting frame is mounted a rotary drum 4. Of the partsof said frame it is suffi dient, for the purposes of this case, tonote the rear end legor pedestal 1, the front endextension or rectangular por-" tion 2, and the front end pedestal 3 and bearing bracket 3 both bolted fast to said extension 2. The drum 4, at its rear end, has a suitable trunnion, not shown,

fixed 'to the head of the drum and suitably journaled features herein disclosed therewith an external ring gear 6, and this combined gear and spider casting is bolted. fast to the front head ion 7 fixed to the inner end of counter-shaft 8 'which is. mounted in the framework 2. It is obvious, that when the counter shaft 8 is turned, rotary motion will be imparted to the drum 4 by meansof the pinion 7 and the externalring gear 6.

A two speed drive is provided for the shaft 8 so as to turn the drumat a higher speed for churning and a lower speed for working the butter. For this purpose, said counter-shaft 8 has fixed thereto an outer or small gear wheel .9 and an inner or large gear wheel 10. i A main driving shaft 11 is journaled in the framework 2, parallel with the counter-shaft 8, and is provided at its outer end with a driving pulley or band wheel 12 which, in practice, is equipped with a radially expansible friction clutch 12%, the hub of which only is shown, for gripping the wheel to the shaft 11. On said-shaft 11 is mounted a-double gear casting, the outer or larger member of which is marked 13 and the inner or smaller member of which is marked 14. This 11, so as to be capable of a sliding movement lengthwise thereof to change from; the high to the low speed, for the drum, whenever so desired. The double gear casting is shifted by a suitable shipper fork, not shown. When said double gear casting is shifted to its outermost position, its large gear wheel 13 will engage with the smill gear 9 on the counter-shaft 8, and thus afford the high speed, the parts being shown in this position in Fig.4, and when said doublegear casting is shifted to its innermost position, its small member 14 will engage with the large gear wheel 10 onjthe counter-shaft 8 and afford the low speed, the'parts being shown in this position v in Fig. 5. i l

In the drum 4 are mounted a pair of fluted rollers 15, the axesv of the respective rollers being parallel with the axis of the drum, on opposite sides thereof and substantially equi-distant therefrom The shafts of naled inthe ,head. of the drum, but, at the front or ward through suitably packed joints and are journaled in one of the cross arms of the trunnion spider 5. A

through the axes ofthe two rollers, as clearly shown in their ends to the head of the drum and suppwud at or near their centers by brackets 16" fixed to the walls of of the'drum. With the external gear 6 engages a pina front end pedestal -The'spider 5 has cast integral 'casting, with the gears 13 and 14, is splined to the shaft I the rollers 15, ,at the rear end of the drum; are jonrgeared end of the drum, the roller shafts extend outpairfof shelves 16 are fixed to the drum, parallel with as to have their working faces substantially in a plane Fig. 1 0f the drawings. The shelves 16 are fixed lo the drum in any suitable way, such as being made last at freedom for slidingmotion thereon,'a corresponding the- (lluIIlEv' The shelves 16 are'preferably so set as to leave a little space between the same and the wallof the drum. l

The drum {is driven continuously, in a constant direction. The rollers are so driven that they always turntoward each other at their upper or butter receiving surfaces. In this machine, and most others of this class, the butter is always worked only on the rising side of he drum. Hence, it follows-that, in order to have the rollers turning toward each other at their upper or butter receiving surfaces, for cooperation with two opposite shelves 16 in succession, so as to work the butter through twice in each revolution of the drum, the, rollers 15 must be reversed twice in each revolution of the drum. An important feature of my invention herein disclosed and claimed, relates to this reversing roller drive, or means for positively reversing the rotation of the rollers twice in each revolution of the drum. while the drum turns continuously in a constant direction. The means for this purpose will now be noted.

The rollers 15 are geared to bedriven one from the other, and this driving relation shiitsfrom one to the other twice in each revolution of the drum. As shown, the shafts of the rollers .15 have fixed thereto a pair of intermeshing gears 17; and on the said pair of shafts, outward of the gears 17, are loosely mounted, with pair-of pinions 18. These pinions 18 are engaged by opposite sides of a small gear fixed to the inner end of a central driving. shaft 20. The driving shaft 20 passes out through the hollow gudgeon of the drum supporting spider 5, and has its bearing therein. At its outer end, the shaft 20 has fixed thereto a relatively large gear wheel 21. On a stationary shaft 24 fixed to the parts 3 and 3 of the framework, at the geared end of the machine, is loosely mounted a double gear casting,

the outer member of which is marked 22 and the inner member 23, and which casting, in practice, is subject to a shipper fork forsliding the same lengthwise of the supporting shaft 24. When said double gear casting is in its innermost position, its inner gear 23" will be in engagement with'the large wheel 1.0 on the countershaft 8 and its outer member 22will be in engagement with the gear 21 on the roller driving shaft 20; or, as the parts are shown in Fig.5, or otherwise stated, this relationship is made to exist at the time when the drum is being driven at its slow speed.. By shifting the double casting, on the shaft 24 to its outermost position. its gear 23 will be thrown out of mesh in respect to the gear 10, and its gear 22v will be thrown out of mesh with the roller driving geara21; and this relationship is made to exist at the time when the drum is be-.

direction opposite to'ithe motion of the drum, andthat I its inner end gearl9 will turn the loose pinions 18 of the roller shafts, in common directions but opposite to the direction of said shaft 20, as-can readily be undersioodfrom an inspection of Fig. 7. It is obvious also,

that ii the pinions 18 can he alternately clutched tothe respective gear wheels 17 fixed to the roller shafts, the driving relation between the two rollers will be alternately shifted from one to the other, and the rotation of the rollers on their own axes will be reversed. while the drum continues to revolve in a constant direction. The means for this purpose will now be noted. The hubs. of the roller gear wheels 17 are corrugated to receive the'smaller or corrugated disks 25 of a corresponding pair of multiple disk friction clutchcs,-best shown in Figs. 2, 3 and 7. 'Theinner hubs of the pinions 18 are provided with housing flanges 18 having,

on their interior, radially projecting ribs or lugs 18 adapted to engage with the peripheral notches of the larger disks 26 of the friction clutches. and 26 are intercalated with respect to each other, and' as the smaller disks 25 engage with the hubs of the gear wheels 17, and the larger members '26 engage with the ribs 18 of the housing flanges 18" on the hubs of the pinions 18, it, of course, follows that, when one of the clutches is in its closed position and the other is in its open position, motion will be imparted to both rollers 15 from the one thereof having thereon the clutch which is in its closed position at the time.

The disks 25 On the roller shafts, directlyoutward of the pinions 18, are mounted a pair of roller-equipped cam levers 27 with raised cam lugs 27 on their outer hub faces, as most clearly shown in. Figs. 6 and 9. Directly outward of the hubs of the cam levers 27, is located a reaction bar 28 with raised cam surfaces 28Pon the inner faces of its opposite ends for cooperation with the raised. cam surfaces 27 on the hubs of the cam levers 27. .The outer ends of the reaction bar 28 are provided with levers 27, and the bar' 28 is also provided with a central passage enabling it to be slipped over the central shaft 20, as best shown in Fig. 7. With this stated relation of the parts 27 and 28, it is'obvious that angular, motion of the cam levers 27 will slide the pinions 18 lengthwise of the roller shafts so as to close the clutches by clamping together the friction disks 25 and 26. To control these angular movements of the cam levers 27, a cam casting 29 is provided which, as shown, is mounted on the trunnion of the drum supporting spider 5, directly inward of the frame pedestal 3, at the geared openings to fit 'over and ride upon the hubs of the cam end of the machine, as best shown in Figs. 4, 5, 7 and 8'. i

This cam casting 29 is provided with a peripheral'cain flange or track made in two sections, marked 29* and 29 staggered inrespect to each other and so related as to have their main portions in arcs of different circles, and also so as to afford an inlet gap 29 and an outlet gap 29 for the rollers of the cam levers 27. The cam flange 29 is so shaped as to have a considerable section thereof extending in the arc of a true circle but to have one portion thereof, to-wit, that portion adjacent to the outlet gap 29 bent inward-or formed eccentric to the arc of its main portion. The cam flange 29 has its main portion 'formedin the are of a true circle which is concentric to the main portion of the and 29 of the cam casting 29, as can be best seen in position, at the time when so desired, to-wit, when said ment-of that particular cam lever and thereby forcing lever 27 will be entering the gap 29, .and be forced inward, thereby throwing its cooperating clutch into A for a little more than a half revolution ofiahe drum.

' thelowest-member of the two cam levers 27 engages druin, being carried around therewith bythe cam so as to come into engagement with the inner face of lowest roller, on the rising side of the druin, is always drum; and work the same therethr0ugh.'

trunnion spider 5 and engage with the cam flanges 29 Figs. 5, Sand 9. The'cam casting 29 is provided with a pcripl ieral shoulder or lug 30 adapted to engage with the pin 31 rcmovably seated in the pedestal 3, as shown in Fig. 8, for holding the cam casting 29 in a stationary cam is to be called into action for cooperation with the cam levers 27t0 reverse the rollers twice, in each revolution of the'druln. The time, of course, during which this continues is while the machine is being used for working the butter. The pin 31 is withdrawn from' its seat before the churning action begins; and, in the churning action, the cam casting 29 travels with the levers 27. With thestructure of the cam'casting 29 and the relationship thereof to the cam-levcrs'27 distinctly in mind, the operation of these parts can readily be understood. 7 Assume that all the parts are in position for working the butter. The cam casting 29 wilI then be held in casting-29,bcaringagainst theouter face of the cam flange 29 until .thegap 29 is reached, whereupon, the roller will be intercepted by the tangential projectionlof the cam flange 29"-and be shifted inward the cam flange 29", thus producing an angular movethe cooperating clutch into its closed position; and this relationship will be maintained until that partic-lular roller reaches the gap 299, whereupon, the inturned or eccentric portion of the cam flange 29 will engage with the inner surface of said roller and thereby impart angular motion :to the-cam lever 27, in an outward or reverse direction, thus throwing that particular clutch into its open position. At the-same time that i one cam lever is thus thrown outward by the eccen-J tric portion of the cam 29, the roller of the other cam its closed position. Thecam flange 29" is of such length as to hold, the' cam lever 27 passing'over the inner face thereof, in its innermost or'clut'ch closing 'position for nearly but not quite a half revolution of the'drum; the other cam flar'ige 29 is of such length as to'hold the cam lever passing over the outer face thereof, in its-outermost or clutch opening'position The cam flange 29 occupies such a position, when the cam casting 29 is heldstationary by the pin 31, that with the said cam flaln'ge 29". It followsfthat the the' driving member; and, hence, it further follows that the upper or butter receiving faces of the two rollers 15 will always turn toward each other, .on the rising side of the drum, as is required .to receive'the butter" from the shelf'lfi, on the rising side of the Thedevices, herjeinbefore described, for securing the reversing drive for the rollers, it will beseen, from. the above statemen'ts, are of such'a character as to makc the action positive where required and yielding where required, and so that the reverse will take place, at the proper times, in a reliable manner, without any shock or jar to the cooperating parts,' Otherwise and briefly stated, the smooth running of the moving parts of the machine are not in anywi'se interfered churn would probably work faster in the churning,

action, if the rollers were not present. After the cream has been churned, the buttermilk drawn off,

with, 'by'the reversing action of the rollers. The

and the butter washed and the water drawn off, the

butter will be in the bottom of the drumin a granular form. The salt is then applied and the drum is started up under its slow motion. The shell 16, on the rising side of the drum, will then engage with the butter and cooperate with the belly of the drum, in advance of the shelf, to carry up the butter to such a height that the upper portion of the mass of butter will be overcome by gravity and will drop off the mass and roll down along theside of the same until caught bythe rollers 15, whereupon it will be worked drum. All the butter carried up by a given shelf '-Will be worked through the rollers and dropped into the bottom of the drum before the rollers are reversed. At this time, the shelf which had been carrying up the butter will be slightly beyond its vertical position. Under the continued movement -of the drum, the rollers are reversed under thdcoiiperative action of the cam casting 29 and the cam levers 27, as hitherto noted, and will thereafter turn in the right direction forcooperation with the other shelf which will nowbe on the rising side, of. the drum. This second shelf then engages with the butter and in cooperation with the belly ofthe drum carries same up until, under the action of gravity, the butter is. again delivered to the rollers and worked therethrough' and again dropped 'into the bottom of the drum. In this-way, the actions are repeated, working the butter through twice, in,

,each revolution of the drum,'and insubstantially the reverse order in point of time, thus. completely turning over the mass of butter and thoroughly incorporating the salt therewith and removing the moisture from, in a minimum of time.

The efficiency of this machineherein disclosed and thereof.

What claim is 1. The combination with u' rotary drum and a pair of rollers thereon geared to bedriven one from the other, of a reversing drive for said rollers which drive includes a pair of constantly driven clutch members, and. means for automatlcallyl forclng said .two clutch members alternately into clutch closing and clutch opening positions in each half revolutlon of-the drum,- substantially as described.

theredescribed has been fully demonstrated by actual usage I 2. The combination wltlr'a rotary-drum and a p'alr of driven one from the other; and a'reversing drive for said rollers including a pair of constantly driven clutch members loose on their supports and traveling with the drum, and means for automaticallyforeing said two clutches into drivlngand idle positions alternately in reverse order, in eacirhalf revolution of the drum, substantially as described.

4. The combination with a rotary drum and a pair of rollers therein having intermeshing gears fixed to their respective shafts, and a reversing drive for said rollers including a pair of constantly driven clutch members loose one on each of said roller shafts, a pair of cam level-sangularly movable one on each of said shafts to force said 'clutchmembers into clutch closing positions, and a cam eoiiperating with said levers to hold one thereof in clutch closing and the other in clutch opening positions for substantially a half revolution of the drum, substantially as described.

5. Thecombination with a rotary drum, of a pair of rollers therein having gears fixed to their respective shafts and, engaging with each other,- and a reversing. drive for said rollers which drive includes a pair of pinions loose on the roller shafts and movable lengthwise thereof, clutch surfaces between said roller gears and said loose pinions,

a central driving shaft with pinions fixed thereto and enlevers in clutch closing position and the other in clutcl'r opening position for substantially a half revolution o'f the drum, substantially as described.

6. In a machine for churning or working butter, the

surfaces so shaped and disposed as to hold one of said 40 combination with a rotary drumpof' a pair of roilers therein having their axes respectively on opposite sides of the axis otthe drum and substantially-.-equi-distant there from, means for the eontinuous 'rotation of the drum in a rollers twicein each revolution of the drum and atfltimes vwhen the. axes of said rollers are substantially 'in a vertical line, and a pair of'sl elvesfixed' to the drum opposite to each other and haying their facessubstantiali'fln a plane intersecting the'axis of the drum at an angle to'aw pla'ne through-the axes of 'therollers, substantially as 5. scribed.

In testimony where0f I afiix my signaturein rt'en i common (iirectlom'means for reversing the rotation of the 

